Peritoneal Dialysis (PD): Uses the inside lining of your own abdomen (belly, or peritoneal cavity) as a natural filter to clean your blood. A surgeon places a soft tube, called a catheter, in your abdomen so that a cleansing fluid, called dialysate, can enter your body. Wastes and extra fluid pass into this dialysate solution from your blood. This dialysis solution remains (dwell time) in the peritoneum, then after several hours, is removed from your abdomen through this same tube. Peritoneal dialysis can be performed at home.